Problems connecting to Faikin module with Android mobile browser after recent FW update

[wurmtal868]

As I wrote in another thread I'm testing controlling my multi split units by adjusting the "demand" of the outdoor unit for better power efficiency.
Additionally I disconnect my units from mains over night to eliminate the standby power consumption.
I just realize that power cycling the Faikin could trigger an OTA.

Now to problem:
2 of my 6 Faikins are not accessible using an Android phone after today's OTA

It seems that the mobile browser does not allow unsecured http to the two affected devices, while for the other modules a warning is shown that the connection is not secure.
Same happened on a Linux Mint laptop when connecting my network through WiFi.
Connecting via cable works fine.
@revk Do you have any idea what could have gone wrong with the 2 modules?
Since 4 of 6 modules are working fine, I don't think that it is a general FW issue.

[revk]

OK they do not do https server.

The OTA has not changed that, and I have not issued a non-beta release for a while.

Surely you must have a way to access that is plain http?

[wurmtal868]

Yes, I have, when I use a browser that is connected with a LAN cable to my router.
I actually plugged a USB-LAN dongle into my phone and then it's working with phone as well.
I don't understand why this is only happening on two modules out off 6. the S1-Pico above and and a S3-Mini .

When sitting on the couch I usually have no cable connected to my phone.

[wurmtal868]

Never mind.
The issue seems to be caused by my WiFi-Mesh. Depending where my phone is connected either my DSL router directly or via a repeater my phone will or will not connect to the 2 modules in question.